diff --git a/bout++.spec b/bout++.spec
index 7e7931b..c511a56 100644
--- a/bout++.spec
+++ b/bout++.spec
@@ -1,6 +1,6 @@
 Name:           bout++
 Version:        4.3.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Library for the BOUndary Turbulence simulation framework
 
 # BOUT++ itself is LGPL, but we are linking with GPLed code, so the distributed library is GPL
@@ -501,6 +501,10 @@ done
 #
 
 %changelog
+* Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.3.1-4
+- Second attempt - Rebuilt for
+  https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
 * Mon Jul 27 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.3.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild